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[pull] main from MaxMood96:main #141

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merged 13 commits into from
Oct 10, 2021
Merged

[pull] main from MaxMood96:main #141

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4ead32d
[PowerPC] update test case using the scripts; nfc
Oct 10, 2021
c00cab8
[InstCombine] add test for or-of-icmps; NFC
rotateright Oct 10, 2021
da210f5
[InstCombine] canonicalize "(C2 - Y) > C" as (Y + ~C2) < ~C
rotateright Oct 10, 2021
cbd8041
[InstCombine] add tests for (X - Y) == 0; NFC
rotateright Oct 10, 2021
05281d9
[InstCombine] move fold for "(X-Y) == 0"; NFC
rotateright Oct 10, 2021
0e9373a
[Basic] Use llvm::is_contained (NFC)
kazutakahirata Oct 10, 2021
67964fc
[libc++][NFC] Replace tab with whitespace in comment
JoeLoser Oct 10, 2021
6eb7634
[fir] Add character conversion pass
jeanPerier Oct 10, 2021
e53c925
[libc++] Remove empty namespace std in type_traits. NFCI.
JoeLoser Oct 10, 2021
65d62e5
[libc++][test] Replace a TEST_NOEXCEPT_FALSE with noexcept(false). NFC.
JoeLoser Oct 10, 2021
23d5fe6
clang: Convert two loops to for-each
nico Oct 10, 2021
62abc18
clang: Add range-based CFG::try_blocks()
nico Oct 10, 2021
9c8f950
clang release notes: document the -Wbool-operation improvement
sylvestre Oct 10, 2021
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[InstCombine] add test for or-of-icmps; NFC
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@rotateright
rotateright committed Oct 10, 2021
commit c00cab878aa523e20a5dbd618e9852e191504cfe
15 changes: 15 additions & 0 deletions llvm/test/Transforms/InstCombine/or.ll
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Original file line number Diff line number Diff line change
Expand Up @@ -1444,3 +1444,18 @@ define i8 @lshr_bitwidth_mask(i8 %x, i8 %y) {
%r = or i8 %sign, %y
ret i8 %r
}

define i1 @cmp_overlap(i32 %x) {
; CHECK-LABEL: @cmp_overlap(
; CHECK-NEXT: [[ISNEG:%.*]] = icmp slt i32 [[X:%.*]], 0
; CHECK-NEXT: [[NEGX:%.*]] = sub i32 0, [[X]]
; CHECK-NEXT: [[ISNOTNEG:%.*]] = icmp sgt i32 [[NEGX]], -1
; CHECK-NEXT: [[R:%.*]] = or i1 [[ISNEG]], [[ISNOTNEG]]
; CHECK-NEXT: ret i1 [[R]]
;
%isneg = icmp slt i32 %x, 0
%negx = sub i32 0, %x
%isnotneg = icmp sgt i32 %negx, -1
%r = or i1 %isneg, %isnotneg
ret i1 %r
}